Answer:
1. Controlled
2. Variable
Step-by-step explanation:
The scientific method consists of finding scientific answers to a question and it requires to follow several steps.
The scientific method consists of the following steps:
1. Ask Question
2. Do Background Research
3. Construct Hypothesis
4.Test With An Experiment
5.Analyze Results
6. Draw Conclusion
The experiment that is to be conducted should be a controlled one so that it is a fair test and it consists of only one variable. The code consisted of the collection of the existing laws as well as the new laws that were made by Justinian.